Love

1. Trust

1.1. Honesty

1.2. Monogamy

1.2.1. Polygamy

1.3. Infidelity

2. Romantic

2.1. Relationships

2.1.1. Expectations

2.1.2. Limitations

2.1.3. Appropriate behavior

3. Friendship

4. Sexuality

4.1. Sexual dysfunction

4.1.1. Biological

4.1.2. Psychological

4.1.2.1. Causes

4.1.2.1.1. Deviance

4.1.2.1.2. Fetishism

4.1.2.1.3. Paraphilia

4.2. Heterosexuality

4.3. Bisexuality

4.4. Homosexuality

4.4.1. Biological

4.4.2. Societal

5. Familial

5.1. Parent/offspring

5.1.1. Extent of love

5.1.1.1. Unconditional

5.1.1.2. Limitations

5.2. Sibling

5.3. Extended family

5.4. Grandparent/offspring

5.5. Role in development